DOMETIC CT 4050 Cassette Toilet User Manual

SANITATION
TOILETS CT 4050/4110, CTLP 4050/4110, CTS 4050/4110, CTW4050/4110
CT4000

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Please read this instruction manual carefully before first use, and store it in a safe place. If you pass on the product to another person, hand over this instruction manual along with it.

Explanation of symbols

WARNING!
Safety instruction: Failure to observe this instruction can cause fatal or serious injury.
CAUTION!
Safety instruction: Failure to observe this instruction can lead to injury.
NOTICE!
Failure to observe this instruction can cause material damage and impair the function of the product.
NOTE
Supplementary information for operating the product.

Safety instructions

The manufacturer accepts no liability for damage in the following cases:

• Damage to the product resulting from mechanical influences and excess voltage
• Alterations to the product without express permission from the manufacturer
• Use for purposes other than those described in the operating manual

The declaration of conformity can be requested from the manufacturer (contact information on the back).
2.1 General safety
WARNING!

• This device can be used by children aged 8 years or over, as well as by persons with diminished physical, sensory or mental capacities or a lack of experience and knowledge, providing they are supervised, or have been taught how to use the device safely and are aware of the resulting risks.
• Cleaning and user maintenance must not be carried out by unsupervised children.
• Children must be supervised to ensure that they do not play with the device.

NOTICE!

• Do not shake the cassette tank vigorously.
• Do not hang the cassette tank on a bicycle or other vehicle for transportation.
• Do not use antifreeze. These agents may damage the cassette toilet.
• The toilet is designed for a person weighing no more than 130 kg.

2.2 Use of sanitary additives

CAUTION!

• Store the sanitary accessories so that children cannot access them.

NOTICE!

• When using sanitary additives for the use and cleaning of the toilet, pay attention to the instructions for use on the packaging.

Accessories

Available as accessories (not included in the scope of delivery):
Description

• Freshwater tank
• Service door
• Tank flap

On the Dometic website (see back page) you can find information about sanitary accessories.

Intended use

The toilet is designed for installation and use in recreational vehicles such as camper vans or motor caravans.

Technical description

The cassette toilet CTx4xxx consists of a toilet permanently installed in the vehicle and a removable, mobile cassette as a holding tank. The cassette is externally accessible through a door.
Depending on the model, the toilet is supplied with rinse water from the vehicle-side freshwater tank or a tank integrated in the housing.
The following model versions of the toilet are available:

• CT4050, CT4110: detached, without water tank, without console
• CTLP4050, CTLP4110: detached, without water tank, low console
• CTS 4050, CTS4110: detached, without water tank, with console
• CTW4050, CTW4110: detached, with water tank in the console

The 4050 models can be installed in a wet room.
5.1 Description of the components

5.2 Control and display elements

No. in fig. 2, page 3

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Label

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1

| | Flush button

2

| | “Cassette tank full” indicator

3

| | “Cassette tank 3/4 full” indicator

4

| | “Fill freshwater tank” indicator (Not always connected when using the on- board tanks)

5

| | “Cassette tank removed” indicator

Using the toilet

NOTE

• Before putting the toilet into operation, you should clean inside and outside with a soft cloth and lukewarm water with a mild cleaning agent (also refer to chapter “Cleaning and maintenance” on page 26).
• Clean and grease the seals of your toilet regularly (see chapter “Cleaning and maintenance” on page 26).
• Conventional toilet paper can clog the toilet. Use a special fast-dissolving toilet paper.

The manufacturer recommends Dometic COMFORT CARE.
6.1 Sanitary accessories
Sanitary additives for the holding tank decompose feces and prevent unpleasant odors.
The manufacturer recommends:

• Dometic POWER CARE TABS
• Dometic GREEN CARE TABS

When using sanitary additives, please note the instructions for use on the packaging.
NOTE
Conventional toilet paper can clog the toilet. Use a special fast-dissolving toilet paper. The manufacturer recommends Dometic COMFORT CARE.
On the Dometic website (see back page) you can find further information about sanitary accessories.
6.2 Preparing the cassette tank
Removing the cassette tank
Proceed as follows (fig. 3, page 4):

• Open the service door.
• Push the catch upward to unlock the cassette tank.
• Pull the cassette tank out of the cassette housing. When pulling out the tank, resistance has to be overcome.

Adding sanitary additive

• Position the cassette tank upright.

• Rotate the drainpipe approx. 90° upward (fig. 4, page 4).
  NOTE
  Avoid turning the drainpipe to more than 90°, as it otherwise can come off (fig.4, page 4).

• Twist off the cap (fig.5, page 5).

• Add sanitary additive into the cassette tank via the drainpipe (fig.6, page 5).

Observe the instructions for the sanitary additive.
Pushing the cassette tank into the cassette housing
NOTICE!
Ensure that the cassette tank can be pushed into the cassette housing easily. Make sure that the cassette tank does not bump into other objects or components.

• Slide the cassette tank all the way into the cassette housing.
  ✓ The cassette tank lock locks by itself upon being pushed in.

• Check that the cassette tank is securely installed.

• Close and lock the service door.

6.3 Filling the fresh water tank (integrated tank)

• Fill the fresh water tank through the filler neck on the outside of the vehicle. The amount depends on the tank used (the integrated tank for models CTW4050 and TW4110 = 7 liters).

6.4 Using the toilet
The toilet lid remains in a position of approximately 70° (fig. 7 1, page 6).
NOTICE!
The slider must be closed while driving, and no liquid should be above the slider.

• Before use, press the flush button to allow some water to run into the bowl (fig. 7 2, page 6).
• Pull the slider (fig. 7 3, page 6) forward. Leave the slider open during use.
• After use, press the flush button again to rinse the bowl (fig. 8 1, page 6).
• Close the slider (fig. 8 2, page 6).

The cassette tank has a capacity of 19 l. When the indicator lights up, the toilet can only be used a few more times.
NOTE
With a 3/4-filled cassette, use is only possible when the slider is open.
With a tilted position (such as the lasting inclination of the vehicle), the cassette may only be 3/4 full. Overflowing through the vent is possible.
6.5 Draining the cassette tank
Empty the cassette tank when the indicator lights up.

• Remove the cassette tank (chapter “Removing the cassette tank” on page 22).

• Press the release button in the middle of the handle and pull the handle out to its end position (fig. 9, page 7).
  NOTICE!
  • Do not shake the cassette tank vigorously.
  • Do not hang the cassette tank on a bicycle or other vehicle for transportation.
  • Do not place heavy objects on the cassette tank during transport.
  This can damage the housing and rollers.

• Bring the tank to the nearest designated disposal location.

• Press the release button in the middle of the handle and push the handle back into the cassette.

• Set the cassette tank upright and rotate the drain pipe 90° upward (fig. 4, page 4).
  NOTE
  Avoid turning the drainpipe to more than 90°, as it otherwise can come off.

• Twist off the cap (fig. 5, page 5).

• Hold the cassette tank by the handle with one hand (fig. 0 3, page 7) and with the other hand on the slider (fig. 0 2, page 7), so that you can push the vent button (fig. 0 1, page 7) while it is draining.

• Press the vent button when the drain pipe points downwards.
  ✓ The tank drains steadily and without splashing.

• After draining, rinse out the cassette tank carefully.

• Add a sanitary additive to the cassette (chapter “Adding sanitary additive” on page 22).

• Clear away course dirt from the wheels of the cassette tank to prevent scratching of the cassette housing.
  NOTICE!
  Do not clean the inside of the cassette tank with a high-pressure cleaner.
  This can damage the float for the level indicator.

• Push the cassette tank into the cassette housing (chapter “Pushing the cassette tank into the cassette housing” on page 22).

6.6 Positioning the toilet seat
The toilet seat can be swiveled continuously (fig.11 page 8).
6.7 Winter operation
NOTICE!
Do not use antifreeze. Antifreeze may damage the cassette toilet.
You can also use the cassette toilet in the winter, as long as the toilet and cassette tank are in a frost-free area.
If this is not the case, empty the fresh water tank, the cassette tank, and the waterline of the freshwater supply.
This will prevent damage by frost (chapter “Shutting down” on page 25).
6.8 Shutting down
Drain the freshwater tank and the water supply system completely if you are going to take the toilet out of service for an extended period of time.

• Clean the toilet carefully (chapter “Cleaning and maintenance” on page 26).
• Operate the flush button until no more water is in the pipes.
• Interrupt the power supply to the toilet.
• Then drain the cassette tank and rinse it out carefully. Clean the cassette. To allow the cassette tank to dry, do not close the drain pipe.
• Clean and grease all seals and moving parts of the toilet and the cassette tank (chapter “Cleaning and maintenance” on page 26) and repeat this operation before putting the toilet back into service.

Cleaning and maintenance

CAUTION!
Cleaning agents for the toilet may not contain chlorine or alcohol!
NOTICE!
• To prevent material changes, do not use hard, abrasive or
soda-based cleaning agents (scouring agents).
• Do not use polish for cleaning.

NOTE

• Clean and grease all seals on the toilet and cassette tank regularly.
  In case of frequent use, perform these actions monthly or after 3 – 5 drainings of the cassette. Use grease or silicone-based spray.

• For regular cleaning of the toilet bowl, use a mild colorless cleaning agent.
  • Clean the toilet regularly inside and out with a soft cloth and lukewarm water with a mild cleaning agent.
  • Then wash the surfaces with clear water.

The manufacturer recommends:

• Grease: OKS® 1110
• Silicone spray: OKS® 1111

7.1 Greasing the slider
CAUTION!
When the slider is closed during cleaning or greasing, there is a risk of crushing body parts (fig. 12, page 8).
The slide moves smoothly when it is regularly lubricated.
Greasing the slider rods

• Spray the rods of the slider with silicone spray (fig. 13, page 9).

7.2 Releasing the slider from the cassette
CAUTION!
When the slider is closed during cleaning or greasing, there is a risk of crushing body parts.

• Remove the cassette tank and place it on a firm surface (fig. 14, page 9).
• Unlatch the slider handle and pull it out. (fig. 15, page 9).
• Turn the slider anti-clockwise and release it from the cassette (fig. 16, page 10).
  In the state upon delivery and after extended use, the bayonet fitting can be loosened only with difficulty.

7.3 Greasing the cassette seal

• Release the slider from the cassette (chapter “Releasing the slider from the cassette” on page 27).

• Push back the cover so that the seal is accessible (fig. 17, page 10).

• Clean and grease the seal.
  CAUTION! The danger of crushing!
  Do not reach into the opening when you close the cover.

• Close the cover (fig. k, page 11).

• Place the slider back on.

7.4 Cleaning the bayonet fitting and greasing the bayonet seal

• Release the slider from the cassette (chapter “Releasing the slider from the cassette” on page 27).
• Clean the bayonet fitting (fig. 21, page 12) on the slider.
• Uniformly grease the bayonet seal (fig. 22, page 12) with silicone grease.
• Place the slider back on.

7.5 Greasing the O-ring of the cassette vent

• Take the adapter (fig. 23, page 12) off the cassette.
• Grease only the attached O-ring (fig. 24, page 12) with silicone grease.

Maintenance

This chapter describes maintenance that may be performed by the user. Have all other maintenance and service work performed by qualified personnel.
8.1 Spare parts
Spare parts can be obtained from the customer service of the respective country.
All the accessories are available from specialist dealers. If you have any questions, please contact the dealer or your service partner directly.
8.2 Removing and replacing the lid and seat
NOTE
The manufacturer accepts no liability for damage resulting from incorrect or faulty installation.
The required tools are included in the manuals. For the exchange of lid and seat, use the Dometic Renew Kit for CT3000/CT4000 (ref. no. 9600000458).

• Release the toilet seat (fig. 24, page 13).
• Remove the toilet seat (fig.25, on page 13).
• Position the new toilet seat and press it down until it latches in place (fig. 26, page 14).

8.3 Replacing the cassette seal

• Release the slider from the cassette (chapter “Releasing the slider from the cassette” on page 27).

• Push back the cover so that the seal is accessible (fig. 17, page 10).

• Remove the support ring and the seal (fig. 17, page 10).
  NOTICE!
  The seal must be positioned uniformly in the opening (fig. 18, page 10) so that the cassette is sealed and the slider can move easily.

• Insert the new seal (fig. 19, page 11).

• Insert the support ring (fig. 20 page 11).

• Grease all areas.
  CAUTION! The danger of crushing!
  Do not reach into the opening when you close the cover.

• Close the cover (fig. 21, page 11).

• Place the slider back on.

8.4 Replacing the bayonet seal

• Release the slider from the cassette (chapter “Releasing the slider from the cassette” on page 27).
• Remove the old seal (fig. 22, page 12 ).
• Clean the bayonet fitting.
• Insert the new seal.
• Ensure uniform seating of the new seal.
• Place the slider back on.
• Grease all areas.

8.5 Replacing the fuse in the operating unit
CAUTION!

• Switch off the voltage supply before you start!
• Carefully pull the control unit out of the wall opening. There is a risk of injury due to the springs springing back!
  • Lift the control unit with a suitable tool and then pull it out of the bracket or wall (fig. 27, page 14).
  • replace the fuse (automotive fuse: 7.5 A) on the bottom of the control unit (fig. 27, page 14).

8.6 Replacing the wheels on the cassette tank
The wheels on the cassette tank can be replaced individually if required:

• Remove the old wheel as shown (fig.28 on page 15).
• Mount the new wheel as shown (fig. 28 page 15).
• Ensure that the wheel moves freely.

What to do in case of problems

Dometic offers a Europe-wide service network. Authorized customer service centers are available on the Internet on the website dometic.com.
When contacting customer service, please make a note of the following information on the type plate:

• Model Designation
• Product Number
• Serial No.
• MLC

NOTE
You can find the type plate in the cassette housing after the removal of the cassette.

Fault

| Possible cause|

Remedy

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Toilet no longer flushes.| Faulty fuse.
Cassette was not inserted.
Cassette full.
No power supply.
Electronics are defective.
Pump defective.
Solenoid valve defective.
The screen of the solenoid valve is dirty.| Replace the fuse (see chapter “Replacing the fuse in the operating unit” on page 30).
If there are repeated failures, check the electrical connections!
Replace defective parts.
Cassette tank leaks.| Seal worn.| Replace the cassette seal (see chapter “Replacing the cassette seal” on page 29).
No level indication.| The float in the cassette tank is hung up or jammed by toilet paper.| Clean the float in the cassette.
Do not use a high-pressure cleaner!

Warranty

The statutory warranty period applies. If the product is defective, please contact your retailer or the manufacturer’s branch in your country (see the back of the instruction manual for the addresses).
For repair and guarantee processing, please include the following documents when you send in the device:

• A copy of the receipt with purchasing date
• A reason for the claim or description of the fault

Disposal

• Place the packaging material in the appropriate recycling waste bins wherever possible.

If you wish to finally dispose of the product, ask your local recycling center or specialist dealer for details about how to do this in accordance with the applicable disposal regulations.

Technical data

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CT4000

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Input voltage:| 12 Vg
Current consumption:| Max. 2 A with internal pump
Max. 5 A with an external pump
Max. person weight:| 130 kg
Operating temperature:| 0 °C to +50 °C
Capacity:| 19 l (cassette tank)
7 l (freshwater tank, optional
Test mark:|

NOTE
Water supply (for the vehicle-side pump):
The toilet requires a minimum of 7 l/min provided by the vehicle at the outlet of the toilet hose connection in order to ensure a satisfactory flushing output of 5 l/min.

dometic.com

GERMANY
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Hollefeldstraße 63 · D-48282 Emsdetten
+49 (0) 2572 879-0 ·
+49 (0) 2572 879-300
Mail: info@dometic-waeco.de

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AUSTRALIA
Dometic Australia Pty. Ltd.
1 John Duncan Court
Varsity Lakes QLD 4227
1800 212121
+61 7 55076001
Mail: sales@dometic.com.au

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JAPAN
Dometic KK
Maekawa-Shibaura, Bldg. 2
2-13-9 Shibaura Minato-ku
Tokyo 108-0023
+81 3 5445 3333
+81 3 5445 3339
Mail: info@dometic.jp

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SLOVAKIA
Dometic Slovakia s.r.o. Sales Office Bratislava
Nádražná 34/A
900 28 Ivánka pri Dunaji
/ +421 2 45 529 680
Mail: bratislava@dometic.com

AUSTRIA
Dometic Austria GmbH
Neudorferstraße 108
A-2353 Guntramsdorf
+43 2236 908070
+43 2236 90807060
Mail: info@dometic.at

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MEXICO
Dometic Mx, S. de R. L. de C. V.
Circuito Médicos No. 6 Local 1
Colonia Ciudad Satélite
CP 53100 Naucalpan de Juárez
Estado de México
+52 55 5374 4108
+52 55 5393 4683
Mail: info@dometic.com.mx

4445101856242
60177401
2018

References

• Dometic United Kingdom | Your outdoor adventure starts here | Dometic Dometic United Kingdom
• Ausrüstung für Klimaanlagen-Werkstätten | WAECO

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